Continuous Quality Assurance and Optimisation in Cloud-Based Virtual Enterprises

Veloudis, Simeon; Paraskakis, Iraklis; Friesen, Andreas; Verginadis, Yiannis; Patiniotakis, Ioannis; Rossini, Alessandro

doi:10.1007/978-3-662-44745-1_61

Cited by 7 publications

(18 citation statements)

References 15 publications

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“…USDL provided an XML schema for the description of services, which makes data highly interoperable. It was used in multiple cloud European projects such as RESERVOIR and Broker@Cloud . Linked USDL was created as the version 4.0 of USDL.…”

Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

“…The cloud for Europe (C4E) and the Broker@Cloud are European initiatives that were introduced within the seventh framework program. The aim of C4E was to promote the creation of a digital single market for cloud computing services (CCSs) in Europe and to achieve cross‐border interoperability between public sector organizations.…”

Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

“…The authors adopted the ontological approach to manage the dynamics of service relationships. The Broker@Cloud project developed a framework that extended USDL for continuous quality assurance in cloud service brokerage platforms. The framework also provides continuous optimization of cloud services, failure prevention and recovery mechanisms in virtual enterprises.…”

Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

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A survey on the service interoperability in cloud computing: Client‐centric and provider‐centric perspectives

2020

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The vendor lock-in is a prominent issue in cloud computing. It is caused by cloud providers who offer proprietary services, which hinders the cloud interoperability. Client-centric interoperability enables the migration of the data and applications across clouds; it gives the clients control over their workloads and a wider range of service choices. Whereas, provider-centric interoperability allows the providers to collaborate. Thus, providers, who have spare resources, can lend them to other providers who lack computational or storage capabilities to overcome the limitations of their local resources. In this article, we conduct a survey to differentiate between client-and provider-centric interoperability solutions. We aim to provide an up-to-date analysis of the current tendencies and the neglected areas of the cloud interoperability field. Thus, we study the cloud service interoperability evolution through the years. Furthermore, we propose definitions for the intra-cloud and inter-cloud interoperability. Moreover, we propose a taxonomy to classify the cloud interoperability approaches into client-centric and provider-centric categories. Then, for each category, we classify the approaches based on their interoperability environment into single cloud or interconnected clouds. Finally, we analyze and compare the approaches based on multiple criteria. The study reveals the focus on the client-centric solutions and the interoperability in interconnected clouds. We notice more interest in the data and application levels interoperability, mainly, in infrastructure as a service model. We also find that client-centric solutions are, mostly, semantic technologies and brokers. However, provider-centric solutions are middleware, protocols, and standards. We conclude that a generic cloud service interoperability model is needed.

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Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

Section: Classification Of the Cloud Service Interoperability Approachesmentioning

confidence: 99%

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A survey on the service interoperability in cloud computing: Client‐centric and provider‐centric perspectives

2020

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“…Delivering a brokerage framework with a continuous quality assurance and the optimization of software-based enterprise CCS is the main scope of the Broker@Cloud initiative [16], specifically tailored to cloud intermediaries and the CCS modelling domain. The project is focused on extending the Unified Service Description Language (USDL) for supporting continuous quality assurance in CCSs.…”

Section: Public Cloud Services: the European Scenariomentioning

confidence: 99%

Cloud for Europe: The Experience of a Tenderer

Longo

Zappatore

Bochicchio

et al. 2016

2016 30th International Conference on Advanced Information Networking and Applications Workshops (WAINA)

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In 2013, in the context of the Seventh Framework Programme (FP7), the European Commission promoted a major initiative addressing cloud computing and the public sector, named Cloud-for-Europe (C4E), , for the creation of a digital single market of IT services in the cloud. That initiative pushes public sector organizations from Member States for preparing themselves in procuring secure, cost-effective, reliable and trustworthy cloud services. C4E has adopted the Pre-Commercial Procurement (PCP) instrument for involving not only public sector entities but also IT, Telcos, and SMEs in providing innovative cloud-based solutions that best fit public sector's needs. In this paper, after presenting a brief overview of C4E initiative and the current European scenario for public cloud services and cloud projects, we discuss the lessons learned on the relevance of achieving cross-border interoperability between public cloud computing services, deriving from our successful participation at the first PCP phase as tenderers.

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“…4. This conceptual architecture encompasses both the subcomponents of PuLSaR as well as the interactions with "external" components that may exist in a modern Broker [21]. These external to PulSaR components involve the service governance and quality control for assuring quality in all the brokerage phases If PuLSaR is embedded into or integrated with another system, such as a broker's platform, the user-facing components and user agents (considered as external to PuLSaR) are expected to be substituted from platform specific services or parts.…”

Section: Architecturementioning

confidence: 99%

PuLSaR: preference-based cloud service selection for cloud service brokers

Patiniotakis

Verginadis

Mentzas

2015

J Internet Serv Appl

Self Cite

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Over the last few years, the vast increase of cloud service offerings that are available from heterogeneous cloud vendors, has made the evaluation and selection of desired cloud services, a cumbersome task for service consumers. In that respect, there is an increasing need for user guidance and intermediation during the service selection process but also during the cloud service consumption that should always refer to the best possible choice based on user preferences. In this paper, we discuss the Preference-based cLoud Service Recommender (PuLSaR) that uses a holistic multi-criteria decision making (MCDM) approach for offering optimisation as a brokerage service. The specification and implementation details of this proposed software mechanism are thoroughly discussed while the background method used is summarised. Both method and brokerage service allow for the multi-objective assessment of cloud services in a unified way, taking into account precise and imprecise metrics and dealing with their fuzziness. We cope with the fuzziness of imprecise metrics in the sense that this approach deals with linguistically expressed preferences and cloud service characteristics that lack a fixed or precise value and entail a level of vagueness which can only be captured using the Zadeh's Fuzzy Set Theory. Furthermore, this paper reports on a number of experiments that were conducted in order to measure PuLSaR's performance and scalability.

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Continuous Quality Assurance and Optimisation in Cloud-Based Virtual Enterprises

Cited by 7 publications

References 15 publications

A survey on the service interoperability in cloud computing: Client‐centric and provider‐centric perspectives

A survey on the service interoperability in cloud computing: Client‐centric and provider‐centric perspectives

Cloud for Europe: The Experience of a Tenderer

PuLSaR: preference-based cloud service selection for cloud service brokers

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